Device for setting calipers



T. H. WHITE DEVICE FOR SETTING CALIPERS Au 14, 192 mm Filed March 5, 1921 I HIIII a f 69/; 5 E b i E 2 E ZNVENTOR as T/zomas fi zer/i/mmwm) .[Zarmae 4 Ma? a ATTORNEY.

Patented Aug. 14, 123.

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THOMAS HYLER WHITE, DECEASED, LATE O1 THORNTON HEATH, ENGLAND; BY

FLORENCE A. WHITE, ADMINISTEATRIX, OF THORNTON HEATH, ENGLAND, AS- SIGNOR 0F ONE-FOUBTH'TO CHAEILES GMTEOSIEN, OF PONTIAC, MICHIGAN, AND ONE-FOURTH T0 ELLIOTT J. STOIDDABD, HIGHLAND PARK, MICHIGAN.

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' A pplication filed. March 5, 1921. Serial No. 450,047.

To all whom it may'conoern:

Be it known thatFLoRnNon A. W'Hrrn, administratrix of the estate of THOMAS HYLER WHITE, deceased, a subject of the King of Great Britain, residing at lla Frant Road, Thornton Heath, Surrey, England, shows that said TI-roMAs HYLEP.

l/VHrrn invented a certain new and useful improvement in Devices for Setting Calipers, for which application was liled in England February 17th, 1920, British Patent No. 152,261, and declares the following TO be a full, clear, and exact description 01 the same, such as'will enable others skilled in the art to which it pertains to make and'use the same, reference being had to the accompanying drawings, which form a part of this specification.

'My, invention relates to a device for setting calipers and the process of using the.

same. 7

In the accompanying drawings,

Figure 1 is a diagram illustrating the mode of using my improved caliper setting device.

Fig. 2 is a plan view of a device embodying my invention showing also its use in setting inside, and outside, calipers.

Fig. 3 is an elevation looking from the 7 left of Fig. 2, the calipers being omitted.

Fig. 4c is a detail showing a modified form of the apparatus in Fig. 2.

Fig. 5 tea view similar to Fig. 3 showing the modification of Fig. l.

a is a rule, or strip'of material, having a scale a along one oi its longitudinal edges and a scale a along the edge at one end. These scales may be in inches and tenths of an inch. r

b is a rider, the longer portion of which extends transversely across the :tace of the rule a. over to engage over the edges of the rule it as shown at Z) 6 in Fig. 3. b is a set screw adapted to be manipulated to bind the rider Z) against the rule a and fix it in position at its adjusted place. The portion of the rider 2; which extends across the face of the rulea: has parallel edges 6 b which .are slightly inclined so that they do not extend quite at right angles to the longitudi nal edges of said rule. The edges 6 b are graduated The ends of the rider 5 are-turned.

03 represents an outside caliper and a an rider Z), these points being in a line parallel to the scale (E. The finer adjustment or the points of the calipers will be obtained by putting saidpoints at the proper divisions of the scales a 6 r The outside calipers w may be similarly adjusted between the edge of the scale a and the edge 6 of the rider.

The method of graduating the'edges b and b of the rider is illustrated in Fig. 1. Said edges are inclined to the vertical to such a degree that their departure from a vertical line in their entire length will be one division of the scale a in this instance one-tenth of an inch, and said edges are graduated in equal. divisions upon the nor mal or perpendicular line. Thus let AC represent the vertical or normal line, then AB will be the departure from the vertical in the length of the line BC. The line AC may be divided for instance into ten spaces indicated in F l by the vertical lines a, b, 0, d, e, f, g, it, 2', and the ends of the line AC. Where said vertical lines cut the line CB will be the divisions of the scale .the vertical with reference to the scale a the end edge of the rule may be so cut as to correspond to the graduations shown in Fig. 4, as it is obvious that it is the relative location of these two scales that is functional, and instead of having the rider 0 merely embrace the edges of the rule a said rider may extend completely across both faces of said rule as shown in Fig. 5.

Claims:

1. The combination of a rule provided with a scale extending along one of the longitudinal. edges of the rule and a second scale extending along one of the ends of the rule, rider adapted to be adjusted to different positions along said first1nentioned scale and having a scale extending transversely With reference to the first-mentioned scale. the scales on the end 0; the rule and on the rider being arranged at adefinite obli ue angle to each other for the. purpose described.

2. The combination of a rule having a scale extending along one of the longitudinal edges of the rule, a rider adapted to slide along said. scale and having a part extending transversely across the same, said rule being provided With a second scale along its end edge, the transverse part-'01? said rider and the end edge of said rule being' set at a definite angleto each other for the purpose described.

8. The combination of a rule having a scale extending; along one of the longitudi- 

